CN202811393U - Core-pulling submersible pump - Google Patents
Core-pulling submersible pump Download PDFInfo
- Publication number
- CN202811393U CN202811393U CN 201220379089 CN201220379089U CN202811393U CN 202811393 U CN202811393 U CN 202811393U CN 201220379089 CN201220379089 CN 201220379089 CN 201220379089 U CN201220379089 U CN 201220379089U CN 202811393 U CN202811393 U CN 202811393U
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- CN
- China
- Prior art keywords
- diffuser
- pit shaft
- submersible pump
- core
- water pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a core-pilling submersible pump. The core-puling submersible pump comprises a motor(1), a water pump, a planetary gear reducing mechanism(2) which is arranged between the motor(1) and the water pump, and a shaft(5) for installing the submersible pump. The water pump comprises a guide vane body (3), an impeller (4), and a water sucking horn (9) with a guiding cone (9.1). The guide vane body (3) is provided with a fuel cavity (3.1), and the height difference between the outer end surface of the fuel cavity and the large diameter end surface of the guide vane body is 200 to 300 millimeters. The core-pilling submersible pump has the advantages of being high in efficiency, small in size, being installed without changing the civil engineering structure and being low in transforming cost.
Description
Technical field
The utility model relates to the submersible pump field, particularly a kind of Drawing-Core submersible pump.
Background technique
In recent years, along with the proposition of national energy-saving reduction of discharging and Ministry of Water Resources's " about accelerating the old improvement of pumping station plan in the whole nation ", the old pumping plant that used 30～50 years has entered the period of renovating.In the process of transforming, the pumping plant that has needs dilatation (as: the pumping plant flow from 10
3/ s dilatation to 20
3/ s), and requirement can not change the civil engineering structure of pumping plant.If water pump quantity can not become, the water pump bore will correspondingly enlarge, if but the water pump bore enlarged, the boundary dimension of water pump will enlarge accordingly, the embedment for Civil Works hole dimension can not change again, water pump still can't be installed, this is a difficult problem that needs to be resolved hurrily.And for on-the-spot simple installation, the large diving pump of prior art carries out overall package usually in advance in factory, and after rear integral hoisting was transported to the scene to the transport vehicle, the overall time lifting was to reserving in the well location at the scene.But problem is that the water pump bore is restricted in the old improvement of pumping station process, under the prerequisite that does not change the pumping plant civil engineering, is difficult to finish by the installation steps of prior art the installation of submersible pump.
The model utility content
Technical problem to be solved in the utility model is: provide that a kind of efficient is high, volume is little, do not need to change the Drawing-Core submersible pump that civil engineering structure just can be installed and improvement expenses is low.
The technical scheme in the invention for solving the above technical problem is: a kind of Drawing-Core submersible pump, comprise motor, water pump, be installed on the planetary gear reducing mechanism between motor and the water pump and be used for the pit shaft of installing submersible pump, described water pump comprises diffuser, impeller and with the suction loudspeaker of flow deflecting cone, described diffuser is provided with the grease chamber, the angle of flare α of described diffuser is 17 ° ~ 20 °, and the height difference h between the end face of the exterior edge face of described grease chamber and diffuser larger diameter end is 200 ~ 300mm.
Described diffuser is provided with the overcurrent cavity, and the periphery wall of the interior round platform of diffuser is provided with a plurality of mechanical seal relief holes, and described a plurality of mechanical seal relief hole all is connected with the overcurrent cavity of diffuser.
The quantity of described mechanical seal relief hole is three, and described three mechanical seal relief holes are distributed in the periphery wall of the interior round platform of diffuser.
Described pit shaft comprises the first pit shaft and the second pit shaft that sets gradually from top to bottom, and the diameter of described the first pit shaft is greater than the diameter of described the second pit shaft, and is provided with the pit shaft transition body that is round table-like between described the first pit shaft and the second pit shaft.
Compared with prior art, the utility model has the advantage of: the submersible pump with Planetary Gear Transmission is high-speed electric expreess locomotive because of motor, and diameter is less, can the Effective Raise unit efficiency.And under the prerequisite that does not change impeller diameter, the angle of flare of diffuser is decreased to 17-20 °, then the major diameter of the diameter of diffuser grease chamber and diffuser has all been dwindled accordingly, for the cooling effect that guarantees the thrust-bearing in the grease chamber better, the height of grease chamber is increased, height difference h between the end face of grease chamber and the end face of diffuser is 200 ~ 300mm, be that 200 ~ 300mm has increased in the grease chamber than originally, guarantee the grease chamber volume, namely guaranteed the cooling effect of thrust-bearing, so that the life-span of thrust-bearing is longer.The area of passage of this Drawing-Core submersible pump guarantees that pump capacity is constant, and under the prerequisite that does not change impeller diameter, has dwindled the large diameter size of diffuser, so that under the prerequisite that does not change the pumping plant civil engineering, submersible pump is installed with originally basic identical.
Simultaneously, mechanical seal relief hole on the diffuser is improved, original 1 through hole that leads to the diffuser outside is changed into 3 lead to the through hole that diffuser is crossed fluid space, not only realized the function of pressure release but also avoided volumetric loss herein, improved the efficient of water pump.
And for easy for installation, and improve the unit efficiency of electric pump, also pit shaft is changed into the variable-diameter structure of 2 cylinders from 1 original round column structure.Be provided with the frustoconic shape transition body of leading role between two cylinders, easier for installation, and produce can avoid installing the time and collide with.
Description of drawings
The mounting structure schematic representation of the Drawing-Core submersible pump of Fig. 1 the utility model.
The structural representation of the Drawing-Core submersible pump of Fig. 2 the utility model.
The structural representation of the Drawing-Core submersible pump guide vanes body of Fig. 3 the utility model.
Among Fig. 1-3: the height difference between the end face of the angle of flare of 1 motor, 2 planetary gear reducing mechanisms, 3 diffusers, 3.1 grease chambeies, 3.2 overcurrent cavitys, 3.3 mechanical seal relief holes, 4 impellers, 5 pit shafts, 5.1 first pit shafts, 5.2 second pit shafts, 5.3 pit shaft transition bodies, α diffuser, the exterior edge face of h grease chamber and diffuser larger diameter end.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
As Figure 1-3, a kind of Drawing-Core submersible pump, comprise motor 1, water pump, be installed on the planetary gear reducing mechanism 2 between motor 1 and the water pump and be used for the pit shaft 5 of installing submersible pump, described water pump comprises diffuser 3, impeller 4 and with the suction loudspeaker of flow deflecting cone, described diffuser 3 is provided with grease chamber 3.1, the angle of flare α of described diffuser 3 is 19 °, and the height difference h between the end face of the exterior edge face of described grease chamber 3.1 and diffuser 3 larger diameter end is 250mm.
Described diffuser 3 is provided with overcurrent cavity 3.2, and the periphery wall of the interior round platform of diffuser 3 is provided with a plurality of mechanical seal relief holes 3.3, and described a plurality of mechanical seal relief hole 3.3 all is connected with the overcurrent cavity 3.2 of diffuser 3.
The quantity of described mechanical seal relief hole 3.3 is three, and described three mechanical seal relief holes 3.3 are distributed in the periphery wall of the interior round platform of diffuser 3.
Described pit shaft 5 comprises the first pit shaft 5.1 and the second pit shaft 5.2 that sets gradually from top to bottom, the diameter of described the first pit shaft 5.1 is greater than the diameter of described the second pit shaft 5.2, and is provided with the pit shaft transition body 5.3 that is round table-like between described the first pit shaft 5.1 and the second pit shaft 5.2.
Under the prerequisite that does not change the pumping plant civil engineering, can install for guaranteeing water pump, also the movable vane outer ring of water pump, flow deflecting cone, suction loudspeaker are pulled down the bottom that is installed in the water pump pit shaft from water pump.Specific practice is drilled with several bolts hole below the pit shaft lower flange, with bolt and pit shaft flange connect, use the suction loudspeaker movable vane outer ring Bolt Connection on the lower flange of movable vane outer ring, and flow deflecting cone is fixed on the suction loudspeaker by a support.So just reduced weight and the height of electric pump, guaranteed that initial weight and the sling height of original supporting driving need not change.When the maintenance electric pump, also reduced the dismounting of component, made things convenient for maintenance.
In actual use, also can change the large thrust-bearing of carrying into originally carrying little thrust-bearing, and increase accordingly
The size of large bearing support reduces bearing load, prolongs water pump working life.
Below only be described with regard to most preferred embodiment of the present utility model, but can not be interpreted as it is limitations on claims.The utility model not only is confined to above embodiment, and its concrete structure allows to change.All various variations of doing in the protection domain of the utility model independent claims are all in the utility model protection domain.
Claims (4)
1. Drawing-Core submersible pump, comprise motor (1), water pump, be installed on the planetary gear reducing mechanism (2) between motor (1) and the water pump and be used for the pit shaft (5) of installing submersible pump, described water pump comprises diffuser (3), the suction loudspeaker (9) of impeller (4) and band flow deflecting cone (9.1), described diffuser (3) is provided with grease chamber (3.1), it is characterized in that: the angle of flare (α) of described diffuser (3) is 17 ° ~ 20 °, and the height difference (h) between the end face of the exterior edge face of described grease chamber (3.1) and diffuser (3) larger diameter end is 200 ~ 300mm.
2. Drawing-Core submersible pump according to claim 1, it is characterized in that: described diffuser (3) is provided with overcurrent cavity (3.2), and the periphery wall of the interior round platform of diffuser (3) is provided with a plurality of mechanical seal relief holes (3.3), and described a plurality of mechanical seal relief holes (3.3) all are connected with the overcurrent cavity (3.2) of diffuser (3).
3. Drawing-Core submersible pump according to claim 2, it is characterized in that: the quantity of described mechanical seal relief hole (3.3) is three, and described three mechanical seal relief holes (3.3) are distributed in the periphery wall of the interior round platform of diffuser (3).
4. Drawing-Core submersible pump according to claim 1, it is characterized in that: described pit shaft (5) comprises the first pit shaft (5.1) and the second pit shaft (5.2) that sets gradually from top to bottom, the diameter of described the first pit shaft (5.1) is greater than the diameter of described the second pit shaft (5.2), and is provided with the pit shaft transition body (5.3) that is round table-like between described the first pit shaft (5.1) and the second pit shaft (5.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379089 CN202811393U (en) | 2012-07-30 | 2012-07-30 | Core-pulling submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379089 CN202811393U (en) | 2012-07-30 | 2012-07-30 | Core-pulling submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811393U true CN202811393U (en) | 2013-03-20 |
Family
ID=47870276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220379089 Withdrawn - After Issue CN202811393U (en) | 2012-07-30 | 2012-07-30 | Core-pulling submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758778A (en) * | 2012-07-30 | 2012-10-31 | 宁波巨神制泵实业有限公司 | Core-pulling type submersible pump and mounting method thereof |
-
2012
- 2012-07-30 CN CN 201220379089 patent/CN202811393U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758778A (en) * | 2012-07-30 | 2012-10-31 | 宁波巨神制泵实业有限公司 | Core-pulling type submersible pump and mounting method thereof |
| CN102758778B (en) * | 2012-07-30 | 2015-03-25 | 宁波巨神制泵实业有限公司 | Core-pulling type submersible pump and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130320 Effective date of abandoning: 20150325 |
|
| RGAV | Abandon patent right to avoid regrant |